Swift. How to delete the character at the beginning and end of the string?
-4
It is necessary to remove the quotes at the beginning and end of the line, if they are in the line
Could it be more beautiful?
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) {
let v = str.dropFirst()
str = String(v.dropLast())
}
print(str)
swift string
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
add a comment |
-4
It is necessary to remove the quotes at the beginning and end of the line, if they are in the line
Could it be more beautiful?
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) {
let v = str.dropFirst()
str = String(v.dropLast())
}
print(str)
swift string
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
add a comment |
-4
-4
-4
It is necessary to remove the quotes at the beginning and end of the line, if they are in the line
Could it be more beautiful?
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) {
let v = str.dropFirst()
str = String(v.dropLast())
}
print(str)
swift string
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
It is necessary to remove the quotes at the beginning and end of the line, if they are in the line
Could it be more beautiful?
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) {
let v = str.dropFirst()
str = String(v.dropLast())
}
print(str)
swift string
swift string
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
edited Nov 23 '18 at 6:18
Leo Dabus
130k30265341
130k30265341
asked Nov 14 '18 at 19:42
Andrey Zet
184126
asked Nov 14 '18 at 19:42
Andrey Zet
184126
asked Nov 14 '18 at 19:42
Andrey Zet
184126
184126
add a comment |
add a comment |
3 Answers
3
active
oldest
votes
1
If you like a one liner:
let str = """"Hello, playground"""
let unquoted = String(str.drop(while: { $0 == """}).reversed().drop(while: { $0 == """}).reversed())
print(unquoted) //Hello, playground
You could define these extensions to make it look a tad prettier:
extension String {
private func removeQuotesAndReverse() -> String {
return String(self.drop(while: { $0 == """}).reversed())
}
func unquote() -> String {
return self.removeQuotesAndReverse().removeQuotesAndReverse()
}
}
And use it like so:
let unquoted = """"Hello, playground""".unquote()
If you only need to remove the first and last quotes, if they are both present, then I would only add a check that the count is at least 2 characters, since a string like """ has quotes in both the prefix and suffix, but it's not between quotes:
extension String {
func withoutDoubleQuotes() -> String {
if self.hasPrefix("""), self.hasSuffix("""), self.count > 1 {
return String(self.dropFirst().dropLast())
}
return self
}
}
and use it like so:
""Hello, playground"".withoutDoubleQuotes() //Hello, playground
""""Hello, playground""".withoutDoubleQuotes() //""Hello, playground"
""".withoutDoubleQuotes() //"
"""".withoutDoubleQuotes() //
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
add a comment |
0
You can use Collection removeFirst and removeLast mutating methods:
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) && str != quotes {
str.removeFirst()
str.removeLast()
}
print(str) // "Hello, playgroundn"
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
add a comment |
-1
you can do so:
let str = ""Hello, playground""
let new = str.filter{$0 != """}
answered Nov 15 '18 at 1:07
flowGlen
1155
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
add a comment |
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3 Answers
3
active
oldest
votes
3 Answers
3
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
If you like a one liner:
let str = """"Hello, playground"""
let unquoted = String(str.drop(while: { $0 == """}).reversed().drop(while: { $0 == """}).reversed())
print(unquoted) //Hello, playground
You could define these extensions to make it look a tad prettier:
extension String {
private func removeQuotesAndReverse() -> String {
return String(self.drop(while: { $0 == """}).reversed())
}
func unquote() -> String {
return self.removeQuotesAndReverse().removeQuotesAndReverse()
}
}
And use it like so:
let unquoted = """"Hello, playground""".unquote()
If you only need to remove the first and last quotes, if they are both present, then I would only add a check that the count is at least 2 characters, since a string like """ has quotes in both the prefix and suffix, but it's not between quotes:
extension String {
func withoutDoubleQuotes() -> String {
if self.hasPrefix("""), self.hasSuffix("""), self.count > 1 {
return String(self.dropFirst().dropLast())
}
return self
}
}
and use it like so:
""Hello, playground"".withoutDoubleQuotes() //Hello, playground
""""Hello, playground""".withoutDoubleQuotes() //""Hello, playground"
""".withoutDoubleQuotes() //"
"""".withoutDoubleQuotes() //
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
add a comment |
1
If you like a one liner:
let str = """"Hello, playground"""
let unquoted = String(str.drop(while: { $0 == """}).reversed().drop(while: { $0 == """}).reversed())
print(unquoted) //Hello, playground
You could define these extensions to make it look a tad prettier:
extension String {
private func removeQuotesAndReverse() -> String {
return String(self.drop(while: { $0 == """}).reversed())
}
func unquote() -> String {
return self.removeQuotesAndReverse().removeQuotesAndReverse()
}
}
And use it like so:
let unquoted = """"Hello, playground""".unquote()
If you only need to remove the first and last quotes, if they are both present, then I would only add a check that the count is at least 2 characters, since a string like """ has quotes in both the prefix and suffix, but it's not between quotes:
extension String {
func withoutDoubleQuotes() -> String {
if self.hasPrefix("""), self.hasSuffix("""), self.count > 1 {
return String(self.dropFirst().dropLast())
}
return self
}
}
and use it like so:
""Hello, playground"".withoutDoubleQuotes() //Hello, playground
""""Hello, playground""".withoutDoubleQuotes() //""Hello, playground"
""".withoutDoubleQuotes() //"
"""".withoutDoubleQuotes() //
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
add a comment |
1
1
1
If you like a one liner:
let str = """"Hello, playground"""
let unquoted = String(str.drop(while: { $0 == """}).reversed().drop(while: { $0 == """}).reversed())
print(unquoted) //Hello, playground
You could define these extensions to make it look a tad prettier:
extension String {
private func removeQuotesAndReverse() -> String {
return String(self.drop(while: { $0 == """}).reversed())
}
func unquote() -> String {
return self.removeQuotesAndReverse().removeQuotesAndReverse()
}
}
And use it like so:
let unquoted = """"Hello, playground""".unquote()
If you only need to remove the first and last quotes, if they are both present, then I would only add a check that the count is at least 2 characters, since a string like """ has quotes in both the prefix and suffix, but it's not between quotes:
extension String {
func withoutDoubleQuotes() -> String {
if self.hasPrefix("""), self.hasSuffix("""), self.count > 1 {
return String(self.dropFirst().dropLast())
}
return self
}
}
and use it like so:
""Hello, playground"".withoutDoubleQuotes() //Hello, playground
""""Hello, playground""".withoutDoubleQuotes() //""Hello, playground"
""".withoutDoubleQuotes() //"
"""".withoutDoubleQuotes() //
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
If you like a one liner:
let str = """"Hello, playground"""
let unquoted = String(str.drop(while: { $0 == """}).reversed().drop(while: { $0 == """}).reversed())
print(unquoted) //Hello, playground
You could define these extensions to make it look a tad prettier:
extension String {
private func removeQuotesAndReverse() -> String {
return String(self.drop(while: { $0 == """}).reversed())
}
func unquote() -> String {
return self.removeQuotesAndReverse().removeQuotesAndReverse()
}
}
And use it like so:
let unquoted = """"Hello, playground""".unquote()
If you only need to remove the first and last quotes, if they are both present, then I would only add a check that the count is at least 2 characters, since a string like """ has quotes in both the prefix and suffix, but it's not between quotes:
extension String {
func withoutDoubleQuotes() -> String {
if self.hasPrefix("""), self.hasSuffix("""), self.count > 1 {
return String(self.dropFirst().dropLast())
}
return self
}
}
and use it like so:
""Hello, playground"".withoutDoubleQuotes() //Hello, playground
""""Hello, playground""".withoutDoubleQuotes() //""Hello, playground"
""".withoutDoubleQuotes() //"
"""".withoutDoubleQuotes() //
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
edited Nov 15 '18 at 10:58
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
answered Nov 14 '18 at 21:28
Carpsen90
7,23262558
7,23262558
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
add a comment |
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
Beautiful! But the second quotation marks are also removed.
– Andrey Zet
Nov 15 '18 at 9:04
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
@AndreyZet You mean you only want the first ones to be removed?
– Carpsen90
Nov 15 '18 at 9:10
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
delete first and last if both are present
– Andrey Zet
Nov 15 '18 at 9:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
I've updated the answer to only take the first and last quotes into account
– Carpsen90
Nov 15 '18 at 10:59
add a comment |
0
You can use Collection removeFirst and removeLast mutating methods:
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) && str != quotes {
str.removeFirst()
str.removeLast()
}
print(str) // "Hello, playgroundn"
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
add a comment |
0
You can use Collection removeFirst and removeLast mutating methods:
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) && str != quotes {
str.removeFirst()
str.removeLast()
}
print(str) // "Hello, playgroundn"
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
add a comment |
0
0
0
You can use Collection removeFirst and removeLast mutating methods:
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) && str != quotes {
str.removeFirst()
str.removeLast()
}
print(str) // "Hello, playgroundn"
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
You can use Collection removeFirst and removeLast mutating methods:
var str = ""Hello, playground""
let quotes = """
if str.hasPrefix(quotes) && str.hasSuffix(quotes) && str != quotes {
str.removeFirst()
str.removeLast()
}
print(str) // "Hello, playgroundn"
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
edited Nov 14 '18 at 20:14
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
answered Nov 14 '18 at 20:03
Leo Dabus
130k30265341
130k30265341
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
add a comment |
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
1
1
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
@Sh_Khan I don't know what you mean by one line. It does what OP asked to mutate the original string and remove both ends it the quotes are present. It also makes sure the original string it is not a single quotes character.
– Leo Dabus
Nov 14 '18 at 20:12
add a comment |
-1
you can do so:
let str = ""Hello, playground""
let new = str.filter{$0 != """}
answered Nov 15 '18 at 1:07
flowGlen
1155
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
add a comment |
-1
you can do so:
let str = ""Hello, playground""
let new = str.filter{$0 != """}
answered Nov 15 '18 at 1:07
flowGlen
1155
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
add a comment |
-1
-1
-1
you can do so:
let str = ""Hello, playground""
let new = str.filter{$0 != """}
answered Nov 15 '18 at 1:07
flowGlen
1155
you can do so:
let str = ""Hello, playground""
let new = str.filter{$0 != """}
answered Nov 15 '18 at 1:07
flowGlen
1155
answered Nov 15 '18 at 1:07
flowGlen
1155
answered Nov 15 '18 at 1:07
flowGlen
1155
answered Nov 15 '18 at 1:07
flowGlen
1155
1155
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
add a comment |
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
This would remove all quotes from the string, not just the first and last.
– Moritz
Nov 23 '18 at 9:37
add a comment |
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